cipher provider

provider.js

__d(function(e, r, n, t) {
    Object.defineProperty(t, "__esModule", {
        value: !0
    }), t.provider = function(e) {
        function r(e) {
            i.__CIPHER_BRIDGE__ ? i.__CIPHER_BRIDGE__.postMessage(JSON.stringify(e)) : i.webkit.messageHandlers.reactNative.postMessage(JSON.stringify(e))
        }

        function n() {
            var e = crypto.getRandomValues(new Uint8Array(4)),
                r = btoa((function(e) {
                    return Array.from ? Array.from(e) : [].slice.call(e)
                })(e).map(function(e) {
                    return String.fromCharCode(e)
                }).join('')).slice(0, 6);
            return Date.now() + r
        }

        function t(e) {
            var r = {
                jsonrpc: '2.0',
                id: e.id
            };
            switch (e.method) {
                case 'eth_accounts':
                    r.result = c ? [c] : [];
                    break;
                case 'eth_coinbase':
                    r.result = c;
                    break;
                case 'eth_uninstallFilter':
                    o(e).catch(function() {}), r.result = !0;
                    break;
                case 'net_version':
                    r.result = u.toString(10) || null;
                    break;
                default:
                    throw new Error("Cipher does not support calling " + e.method + " synchronously without a callback. Please provide a callback parameter to call " + e.method + " asynchronously.")
            }
            return r
        }

        function o(e) {
            return new Promise(function(t, o) {
                var i = n();
                a.set(i, function(r, n) {
                    r ? o(r) : n && (n.id = e.id, t(n))
                }), r({
                    action: 'rpc',
                    id: i,
                    request: e
                })
            })
        }
        var i = window;
        if (!i.__CIPHER__ || !i.__CIPHER__.provider) {
            var a = new Map,
                s = e.version,
                c = e.address,
                u = e.chainId;
            c = c ? c.toLowerCase() : null;
            var l = {
                CipherProvider: function() {}
            };
            l.CipherProvider.prototype.send = function(e) {
                return Array.isArray(e) ? e.map(t) : t(e)
            }, l.CipherProvider.prototype.sendAsync = function(e, r) {
                Array.isArray(e) ? (function(e) {
                    return Promise.all(e.map(o))
                })(e).then(function(e) {
                    return r(null, e)
                }).catch(function(e) {
                    return r(e, null)
                }) : o(e).then(function(e) {
                    return r(null, e)
                }).catch(function(e) {
                    return r(e, null)
                })
            }, l.CipherProvider.prototype.isConnected = function() {
                return !0
            }, l.CipherProvider.prototype.isCipher = !0;
            var d = null,
                f = null;
            l.CipherProvider.prototype.scanQRCode = function(e) {
                return d || f ? Promise.reject(new Error('Another QR code scan is currently active')) : !e || e instanceof RegExp ? new Promise(function(n, t) {
                    d = n, f = t, r({
                        action: 'scanQRCode',
                        match: e ? e.toString() : null
                    })
                }) : Promise.reject(new Error('First argument must either be absent or a regular expression'))
            };
            var p = new l.CipherProvider;
            Object.defineProperty(i, '__CIPHER__', {
                value: {
                    __internal__: {
                        respond: function(e, r) {
                            var n = a.get(e);
                            n && (a.delete(e), n(null, r))
                        },
                        fail: function(e, r) {
                            var n = a.get(e);
                            n && (a.delete(e), n(new Error(r), null))
                        },
                        setAddress: function(e) {
                            c = e ? e.toLowerCase() : e, i.web3.eth.defaultAccount = c
                        },
                        setChainId: function(e) {
                            u = e
                        },
                        postMessage: r,
                        receiveMessage: function(e, r) {
                            if ('scanQRCode' === e) {
                                var n = d,
                                    t = f;
                                f = null, d = null, n && 'string' == typeof r && n(r), t && r && 'string' == typeof r.errorMessage && t(new Error(r.errorMessage))
                            }
                        }
                    },
                    provider: p,
                    version: s
                }
            }), i.web3 = new i.Web3(p), i.web3.eth.defaultAccount = c, i.chrome = {
                webstore: {}
            }
        }
    }
}, 1255);